>>>You're not to far off though, see http://www.digiscents.com/
>>
>>Great, now we're going to be able to get a virus that will fill the room with fart smell.
>
>Hah. As well as stars, UT messages could have odors attached as well.

I've already suggested the option of attaching a steaming turd icon to a message that deserved it. Idea must have got lost in the heap.